FreeCalypso > hg > fc-usbser-tools
view libuwrap/prelim_init.c @ 39:b9ecfa54fe2b
fc-duart28-conf: replace find and check-eeprom with single show command
The original design with separate find and check-eeprom commands
was driven by the assumption that we had to bump off the ftdi_sio driver
in order to read the EEPROM, while a USB device tree check could be done
non-invasively. However, now that we know that we can read the EEPROM
non-invasively too, we can simplify the tool with a single show command.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 10 Sep 2023 19:21:20 +0000 |
| parents | ab506f6aa57c |
| children |
line wrap: on
line source
/* * libftdi-0.20 performs these preliminary steps just before it goes * looking for the device of interest via usb_get_busses() followed * by traversal of the returned tree - hence we do likewise. */ #include <stdio.h> #include <stdlib.h> #include <usb.h> #include "prelim_init.h" void libusb_prelim_init(void) { usb_init(); if (usb_find_busses() < 0) { fprintf(stderr, "error: usb_find_busses() failed\n"); exit(1); } if (usb_find_devices() < 0) { fprintf(stderr, "error: usb_find_devices() failed\n"); exit(1); } }
